CSS resource fetch failed followed by another error

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Unknown, most likely when the cache is not yet available and served by 
Pagespeed.

What is the expected output? What do you see instead?
I expect to see the webpage.
Instead I get this:
Error 324 (net::ERR_EMPTY_RESPONSE): Unknown error.

What version of the product are you using (please check X-Mod-Pagespeed
header)?
0.9.15.3-404

On what operating system?
Centos 5.5 x86
Which version of Apache?
httpd-2.2.3


This are the errors from the logs:
[Sun Jan 30 15:08:30 2011] [warn] [mod_pagespeed 0.9.15.3-404] 
http://www.fencingchamps.com/:8: CSS resource fetch failed: 
http://www.fencingchamps.com/wp-content/themes/infocus/lib/scripts/prettyPhoto/c
ss/prettyPhoto.css
[Sun Jan 30 15:08:30 2011] [warn] [mod_pagespeed 0.9.15.3-404] 
http://www.fencingchamps.com/:9: CSS resource fetch failed: 
http://www.fencingchamps.com/wp-content/themes/infocus/style.css
[Sun Jan 30 15:08:30 2011] [alert] [mod_pagespeed 0.9.15.3-404] 
[0130/150830:FATAL:./net/instaweb/rewriter/public/resource.h(62)] Check failed: 
got_contents. Resource contents read before 
loading\nBacktrace:\n\t/usr/lib64/httpd/modules/mod_pagespeed.so 
[0x2b7738a32e4a]\n\t/usr/lib64/httpd/modules/mod_pagespeed.so 
[0x2b7738a228fa]\n\t/usr/lib64/httpd/modules/mod_pagespeed.so 
[0x2b7738a33abf]\n\t/usr/lib64/httpd/modules/mod_pagespeed.so 
[0x2b7738b0f9db]\n\t/usr/lib64/httpd/modules/mod_pagespeed.so 
[0x2b7738b0fc21]\n\t/usr/lib64/httpd/modules/mod_pagespeed.so 
[0x2b7738a400ad]\n\t/usr/lib64/httpd/modules/mod_pagespeed.so 
[0x2b7738a401c7]\n\t/usr/lib64/httpd/modules/mod_pagespeed.so 
[0x2b7738a403a3]\n\t/usr/lib64/httpd/modules/mod_pagespeed.so 
[0x2b7738a2370a]\n\t/usr/lib64/httpd/modules/mod_pagespeed.so 
[0x2b7738a26ea8]\n\t/usr/sbin/httpd(ap_process_request+0x57) 
[0x2b772d7077e7]\n\t/usr/sbin/httpd 
[0x2b772d704b70]\n\t/usr/sbin/httpd(ap_run_process_connection+0x72) 
[0x2b772d700cd2]\n\t/usr/sbin/httpd [0x2b772d70b789]\n\t/usr/sbin/httpd 
[0x2b772d70ba1a]\n\t/usr/sbin/httpd(ap_mpm_run+0x78d) 
[0x2b772d70c27d]\n\t/usr/sbin/httpd(main+0x7e8) 
[0x2b772d6e6e48]\n\t/lib64/libc.so.6(__libc_start_main+0xf4) 
[0x2b772f611994]\n\t/usr/sbin/httpd [0x2b772d6e6199]
[Sun Jan 30 15:08:32 2011] [notice] child pid 28595 exit signal Aborted (6)

The page would load fine after a refresh with the css & js combined.

Original issue reported on code.google.com by ionut.ne...@gmail.com on 30 Jan 2011 at 6:15